Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3880
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
WN 3880 · SRQ → STL
departs 3:25 PM ET · arrives 4:45 PM CT
Forecast issued Thu 1:00 AM ET · 14h before departure
Watch this flight
Other days
Today
Fri 10/2 32%
Sun 10/4 27%
Mon 10/5 15%
Tue 10/6 16%
Wed 10/7 16%
Odds over time
Arrive at STL more than 15 minutes late?
39%
chance · ±4 pts
+2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
39%
Leave 15+ late
30%
Arrive 1h+ late
8%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
Now
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 19% · changed +2 pts in 24h
+2 pts
39%
Yes 39%
No 61%
Leave SRQ more than 15 minutes late?
Calm-weather odds: 16% · changed −1 pt in 24h
−1 pt
30%
Yes 30%
No 70%
Arrive at STL more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to STL?
On time or early
60%
15–30 min late
18%
30 min–1 hour late
12%
1–2 hours late
4%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Thunderstorms forecast at SRQ that day
↑
Cloud base down to 1,000 ft, 0.3 in of rain forecast at STL that day
↑
Later flights pick up delays from earlier in the day
↓
Thursdays in October are usually quieter than average
↓
STL usually runs smoothly
Weather at each end
SRQ (origin)
Gusts 18 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.18 in
STL (destination)
Gusts 18 kt Ceiling 367 ft Visibility 2.66667 mi Precip 0.33 in
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.